/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraScript.h
bool HandleVariableRenames ( const [TMap](API\Runtime\Core\Containers\TMap)< [FNiagaraVariable](API\Plugins\Niagara\FNiagaraVariable), [FNiagaraVariable](API\Plugins\Niagara\FNiagaraVariable) > & OldToNewVars, const [FString](API\Runtime\Core\Containers\FString) & UniqueEmitterName )